Method of making striped paper bags



(N0 Mudel.)

O. A. DEAN & P. H. ROBIE.

METHOD OF MAKING STRIPED PAPER BAGS.

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UNITED STATES arnnr rrrcn.

CHARL IS A. DEAN AND FREDERIO ll. ROBIEOF BOSTON, ISIASSACHUSETTS.

METHOD OF MAKING STRIPED PAPER BAGS.

SPECIFICATION forming part of Letters Patent No. 399,846, dated March 19, 1889.

Application filed July 21, 1888.

To all whom it may concern- Be it known that we, CHARLES A. DEAN and FREDERIC ,H. RoBIE, citizens of the l'nited States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in the Method of Making Striped Paper Bags, of which the following is a specification, reference being had therein to the accompany- IO ing drawings.

This invention has relation to a method of making striped paper bags or otherwise ornamenting the same during the process of making; and among the objects in view are to pro- 1 5 vide a method of accomplishing the above p urpose, which method will be performed with but one handling of the material, and also to provide a method of quickly drying the stripes in order thatthe material upon which they are formed may be immediately and subsequently manipulated.

Referring to the drawings, in which I have shown one form of mechanism to r accomplishing the method in view, Figure 1 represents in plan, and Fig. 2 in section, the principal elements of one form of bag-machine adapted to co-operate and provided with mechanism for practicing our method. Fig. 3 is an end elevation of the complete machine, and Fig.

:l'. is a central vertical section of the striping roller and ink-supply controlling devices employed.

Like letters of reference indicate like parts in all the figures of the drawings.

A represents the bed or table of a bagmachine, B the former, C the feed-table, D the the severing-knife, E the folding-blade, F F the folding and delivering rolls, G the carrying-belt for conveying completed bags away 40 from the machine, II the final paste-roll acting in conjunction with the folding-blade E, l' the primary guide-roller, J the bellowsfoldforming" disks, and K the seam-lapping fingers, all of which are of a common well- 5 known construction and arranged to perform their wellkuown functions. In this instance the knife D or severing device mounted on an arm, I), projecting from a shaft D arranged diagonally with reference to the direction of the passage of the material through Serial No. 280,680. (No model.)

the machine and receiving its motion by being geared to one of the feed-rolls C, such construction also being well known in the art.

The various moving parts of the machine thus far mentioned are to be operated in any well-known manner.

L represents the web, and L the tube formed therefrom.

M represents a guide-roller, which is arranged to cause the web L to pass clear of the roll from which it is unwound to the primary guide-rollerl of the machine.

N is the usual seam-pasting roll and fountain. In addition to the guide-roll M there is provided a companion roll, 0, which serves to retain the web L in contact with an impressionroller, P, which in this instance is represented as being hollow and having hollow journals in order that steam may be intro duced therein by means, for example, of the pipe P. (Shown in Fig.

Q represents the striping-roll, and it consists in this instance of a roll the body of which is formed of wood and provided with a series of grooves, Q, whereby the periphery of the roll is divided into rings, which grooves serve as the priuting-surface, and which in the operation of the machine impress upon the web and completely over the same longitudinal stripes.

R represents the inkwell, in which the striping-roll Q revolves, so as to take up the ink.

S represents a scraper or wiper consisting of any suitable material for instance, cloth, felt, or leather-arranged in a frame, S, pivoted, as at so that by means of an adjusting screw or bolt, S one end of said frame may be depressed, thereby elevating the opposite end, which is adjacent to the striping roll, and. thus causing the scraper or wiper S to bear with more or less force upon the pe riphery of the roll. Adjusting-screws S are arranged in the back wall of the frame and provided each with a set-nut, so that the Wiper or scraper may be forced against the roll to exert a greater or less pressure, as desired, and that, too, at different points along the roll, whereby the wear of the scraper or wiper may be taken. up, and whereby, also, the q nan tity of ink transferred by the roll to the paper maybe controlled. In this case the scraper or wiper removes the ink from the periphery of the roll, and therefore the ink remaining in the grooves will be transferred to the paper in the form of parallel stripes, and by reason of the arrangement of the striping mechanism with relation to the web conducting and guiding rolls and paper-manipulating mech anisms of the machine the stripes will not only be parallel with each other, but will be parallel with the edges of the completed bag, and will appear upon all the outer sides and upon the bottom of the bag when completed, whether the bag be made from a plain tube or when having what are known as bellows sides.

An additional important advantage of this lnvention is that it saves the winding and rewinding of the web and the passage thereof through striping mechanism and subsequent drying mechanism in order to ornament the same, one complete handling being saved.

By the location and arrangement of the drying-roller in close proximity to the striping mechanism the webhas a longer time to dry before it arrives at any of the-tube or bag forming mechanisms which come into contact with the striped surface of the web, this being in this instance, first, the guide-roller I, and, next, the upright guiding-rods B, which serve to maintain the surplus material at each side of the former B.

The ink-well R is provided on its under surface with ribs R, which ride in grooves formed in the upper surface of two risers, R and is connected with a fixed part of the machine by coiled springs, or, it may be, by any other suitable device or devices, for yieldingly drawing the well and the striping-roller mounted thereon against the web as it passes around the impression and drying rollerP, thus permitting the striping-roller to adapt itself to varying thicknesses of different Webs.

The web L is supported on the webshaft L which is provided with tension-weights L and the usual well-known tension-bar, L, pivotally connected with a fixed part of the frame by arms L No claim is herein made for any of the mechanism herein shown and described, as the same forms the subject-matter involved in a companion application filed herewith.

It is apparent that striping mechanisms varying materially from that herein shown and described may be employed, and still the advantages specified Will be secured, so that the invention is not limited to any particular mechanism for a practical use of the same.

The mechanism shown and described is but one of many forms which may be employed in'bringing the method to a practical use.

The drying mechanism may be duplicated or arranged at any convenient point between the striping-roll and primary guide-roll of the machine.

hat we claim is The method of making striped paper bags herein disclosed, which consists in striping and simultaneously drying one side of a web and subsequently and continuously conducting said web to and through bag-forming mechanism.

In testimony whereof we affiX-our signatures in presence of two witnesses.

CHAS. A. DEAN. FREDERIO H. ROBIE. Witnesses:

NV. B. FRENCH, ARTHUR P. FRENCH. 

